Top-roll saddle and stirrup.



L. S. BACHE.

TOP ROLL SADDLE AND STIRRUP,

APPLICATION FILED SEPT-22. 1915.

Patented Aug. 27; 1918.

STATES PATENT OEFTCE.

LEIGH S. BACHE, OF MIDDLESEX BOROUGH, NEW JERSEY, ASSIGNOR TO BOUND BROOK OIL-LESS BEARING COMPANY, OF BOUNDBROOK, NEW JERSEY, A CORPORATION OF NEW J EBSEY.

TOP-ROLL SADDLE AN D STIRRUP.

Specification of Letters Patent.

Patented Aug. 27, 1918.

Application filed September 22, 1915. Serial No. 52,093.

To all whom it may concern:

Be it known that I, LEIGH S. Beams, acitizen of the United States, and a resident of the borough of Middlesex, in the county of Middlesex and State of New Jersey, have invented certain new and useful Improvements in Top-Roll Saddles and Stirrups, of which the following is a full, clear, and exact description, whereby any one skilled in the art may make and use the same.

The invention relates to spinning frames and is particularly directed to certain new and useful iin n'ovements in adjustments for top roll saddles such as are employed upon the rolls of spinning frames.

The object of the present invention is to provide a ready adjustment for the stirrup and weight with reference to the saddle member, and of course, incidentally with reference to the rolls upon which the saddle member bears. In its object. it is adapted to provide a ready adjustment by which the tension upon the top saddle member and the underlying rolls may be effected during the operation of the machine and without any special tools or apparatus, other than that provided directly upon the saddle members.

A further object is to provide a verysimple form of adjustment for the stirrup and weight by which the stirrup may be manipulated by the hands of the operator with out special tools and which will hold its position after adjustment.

Referring to the drawings:

Figure 1 is a side elevation of the saddle with the top rolls diagrammatically illustrated as they appear for spinning short-fibered staple.

Fig. 2 1s a perspective view of the top saddle member illustrating the adjusting plate.

Fig. 3 is a perspective view of the adjusting plate removed from the saddle member.

Fig. i is a perspective view of the adjusting plate and top saddle member illustrating a possibility of using a special tool for securing adjustments.

Fig. 5 illustrates a slightly modified form of adjusting plate and the appurtenant parts.

Fig. 6 is a fragmentary view illustrating the knife-edge adjusting eifects.

It is not at all a new idea to provide an adjustment on a saddle block for the stirrup or weight strap. Many devices of amore or less complicated character have been devised and used in conjunction with ton-saddle members. 7

Where metallic saddles employing a lubricant are used, it has been a common practice to arrange a member bearing the stirrup and adjustable along the upper surface of the top-saddle member. Adjustable plates bearing the stirrup have been used, and adjusting screws have been employed. It has also been a practice to form notches in the upper surface of the top-saddle member so that the stirrup or weight might be moved into one or the other of the notches.

The present invention relates to a special typeof saddle block. The block herein described is formed from impregnated wood or fiber and is self-lubricating. That is, itrequires no oil or grease other than that which is an inherent part of its composition. I

Vhere lubricating fiber is used for the saddle members, the lubrication is uniform throughout the entire body ofthe structure, and where an attempt is made to form grooves, notches or similar adjusting points for the stirrup there is great liability of the stirrup slipping. The grooves or notches cannot be accurately and sharply defined, and with the vibration and a considerable weight hanging upon the stirrup, it has been found that the stirrup slips from one notch to another.

The present invention relates to an efl'ective means for preventing slippage, and obviates the necessity of weakening the saddle member by forming grooves or notches of sufficient depth to hold the stirrup. It also provides for an easy and ready adjustment of the stirrup along the saddle memberwithout stopping the machine and without requiring special tools.

The top rolls of spinning machines of necessity must be adjusted closer to or farther from the front or delivery roll in order to adapt them to the varying condition of the roving or sliver. It is usually desirable to vary the pressure exerted on the several top rolls through an adjustment of the weight strap or stirrup. The weight must bedistributed to exert certain pressures upon the rear roll and intermediate roll and upon the front roll.

it is also very desirable to provide an adjustment, by which the stirrup or support to which the teight is attached may be positioned along the saddle member, to vary the pressure upon the rolls, with considerable nicety, even while the machine is in op eration.

Ob iously it is quite as essential to have the adjustmentreadily under the hand of the operative. so that, no special tool such as screw drivers or the like are necessary for securing adjustment. Ordinarily til ere is a considerable weight hanging upon the stirrup and if this weight must be raised. considerable exertion is necessary or a special tool must be employed tor ra sng the weight torreadily shifting the stirrup.

'l'i here metallic saddles are employed. screw. and other iixtu may be readily applied for securing adjustments.

The present device provides etlicient adjustments in conjunction with a fibrous self oiling block and gives sutlicient. gradation of adjustment to be thoroughly effective.

Referring to the drawings (1 indicates the trout roll, 6, intermediate roll and c, the rear top roll.

These rolls cooperate with corresponding lower rolls a. Z) c.

As illustrated in the drawings 2 two part saddle is shown. This consists of an upper saddle member 1. and a lower saddle member The former bears upon the front top roll and upon the lower saddle member The lower saddle llltll'ibGl bears upon intermediate roll Z), and the rear r )ll 0, the upper and lower saddle members are by prete )ance formed with interengaging parts. The lower member 2 has formed in its upper surface a slot or groove 3, into which projects the tin t which permits longitudinal adjustment of the saddle parts while preen ing lateral displacements or separation thereof.

ihe saddle parts are of a male and female type in their engagemen s.

lllounted upon the upper saddle 1, there is an adjusting p ate 5, which has peculiarly formed serrations 6. extending t 'ai'isversely thereof and in parallel lines.

This plate is preferably provided with dependent side members or lugs T. with tangs or clips 8, which may be conveniently driven into the fiber of the materia to lirmly hold the plate in place.

The stirrup of the usual form as illustrated at 9, and is perto 'ated as at to slip over the ipper saddle member. The under edge of the perforation 10 as illustrated at 11 engages the serrations of the plate.

It desired the engaging portions oi? the stirrup may be sharpened or beveled that there is p 'aeti ally a knife-edge engagement ot the stirrup with the serrated plate.

1 he etiect of such an arrangement is illustrated in Fig. (5 on enlarged scale.

'leterring to this figure, it will be noted that the sharpened knife-edge 12 ot' the stirrup bears as at '12 upon the beveled portion of one oi the serrations. Due to the pull of the weight, its tendency is to crowd down into the lower portion 13 of said serration. is the pull of the weight occurs upon the stirrup, the sharp edge 1% of the serration bears against the face of the stirr ip. Thus during any Vibration, there are two knife-edge points 12 and I l tor the stir up and there" are there is a yery delicate form oi self-adjustment.

it wili be noted that the serrations are sharply and definitely formed in junta-position to each other. and that they are so termed that there is u. slight well defined cam surtace over which the stirrup may moved from one serration to another.

As illust 'ated in 1 to Fig. l of the drawings, the declination ot' the serrations is all in one direction. it is therefore quite obvious that, starting with the stirrup in its lowermost position adjacent to the front roll a. it is a simple matter to place the thumb against the stirrup and force it along the "am surface of the serrations until a perfeet i'tdjustment is eli'ected.

in Fig. its serrations are shovn with an equal pitch on both sides so that the stirrup may be moved from one end to the other over equally disposed can! surfaces.

In Fig. 4.. a convenient means is illustrated for using tool if desired. in this case an opening 15, is provided centrally ot the stirrup and a screw driver or small bar 16, may ie inserted in the opening 15, to pry up the stirrup and slip it from one serration to another. Such device is of course entirely unnecersary in adjusting trom the front roll a, which is the normal starting positio toward the intermediate roll 7). This arrangement is merely illus trated to show the possibilities 01"- moving the stirrup without directly placing the hand upon the saddle member and other parts.

Obviously the exact form of the plate might be varied to suit the exigencies of any particular type 01" stirrup in common use. I

Ordinarily the most common type is a serrated one, such as is illustrated. It is also apparent that means tor fastening the plate to the top saddle might be modified and varied. although the type illustrz ted has special advantages inasmuch as, thetangs S, pre entlongitudinal displacement.while the downiardly-turned edges or lugs T, prevent lateral displacement. The plates may be made ot' very thin light metal and inasmuch is no perforation necessary in the saddle lo-cl for securing them, its strength and its uniform character for heat radiation is not impaired.

lVhat I claim as my invention and desire to secure by Letters Patent is:

1. In a saddle block for top rolls, a saddle member, a weight stirrup for said member, and an adjusting plate upon which the stir rup rests, said plate having a series of cam surfaces forming inclines arranged transversely of the plate and upon which inclines the stirrup rests and over the upper edges of which cams the stirrup may be pushed.

2. In a saddle block for top rolls, a saddle member, a weight stirrup for said member having a knife-edge for its line of engagement with an adjusting plate and an adjusting plate upon which the knife-edge of the stirrup rests, said plate secured to the saddle member and having sharply defined transverse cam surfaces arranged in series transversely of the plate and all undercut in the same direction and providing cam surfaces upon which the knife-edge of the stirrup rests with the upper edge of the adjacent serration impinging against the face of the stirrup.

3. A saddle block, having an adjusting plate for a weight strap or stirrup, said plate having sharply defined transverse serrations forming oblique cam surfaces arranged in parallelism transversely of and from end to end of the plate, and integral tangs for securing the plate upon the saddle member to prevent lateral or sidewise move ment thereof.

at. A saddle block, having an adjusting plate for a weight strap or stirrup, said plate having sharply defined transverse serrations forming oblique cam surfaces all undercut in the same direction and arranged in parallelism transversely of and from end to end of the plate, down turned tangs adapted to be pressed into the upper sur face of the saddle block to secure the plate, and lugs, embracing the sides of the saddle member to prevent lateral displacement.

An adjusting device for saddle blocks consisting of a top saddle member having a plate provided with sharply defined transverse serrations forming cam surfaces upon which surfaces the weight strap may rest and may move, a perforated weight strap resting upon said plate between its serrations and with its edge bearing upon one of the cam surfaces, and having an opening extending above its edge of contact with the plate, said perforation providing an opening through which a lifting bar may be inserted, and in conjunction with the serrated plate forming a means by which a lifting bar may be used as a lever for moving the stirrup into engagement with either of the cam surfaces.

LEIGHYS. BACHE. ll itnesses Gno. T. 'SMALLEY, lVM. F. JENNINGS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. e." 

